Modular Floodlight PIR Layout for Blind-Spot Motion Detection
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Solution Overview
Problem
Security systems with floodlights and cameras have limited field of view and articulation, leading to blind areas and reduced customizability.
Innovation Solution
A modular floodlight system with a camera unit magnetically coupled to an accessory unit, featuring passive infrared sensors that expand the motion detection field of view and enable 3-axis articulation, allowing for enhanced motion detection and camera orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a security camera is mounted on a wall with limited field of view, then the system structure is simple, but blind areas are created where motion cannot be detected
Solution Approach 1:
The system divides motion detection into multiple zones using separate PIR sensors positioned at different locations. Each sensor covers a specific angular range, collectively providing 360-degree coverage without requiring a single complex sensor system.
2Adaptability or versatility
If a security camera is fixed in a single orientation, then the mounting structure is simple, but camera orientation customizability is reduced
Solution Approach 1:
The mounting structure incorporates adjustable articulation mechanisms that allow the camera to be dynamically repositioned to multiple orientations. This enables users to customize camera angles while maintaining a relatively simple base mounting structure.
3Area of stationary object
If a single PIR sensor is used in the camera, then the device structure is simple, but motion detection coverage has blind spots
Solution Approach 1:
The system combines multiple PIR sensors into a unified motion detection system. Each sensor detects motion in its specific angular range, and their combined coverage eliminates blind spots while maintaining manageable system complexity through modular integration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides comprehensive motion detection and customizable camera positioning, preventing blind spots and enhancing user experience by activating lights and image capture in response to motion detection.
Implementation Method 1
The accessory unit includes passive infrared, PIR, sensors that expand and supplement motion-detection capabilities of the camera unit
Implementation Method 2
A camera system includes a camera unit magnetically coupled to an accessory unit
Data Source
AI summary
This document describes techniques directed to a modular floodlight system with supplemental motion detection. The modular floodlight system includes a camera unit magnetically coupled to an accessory unit. The accessory unit includes passive infrared, PIR, sensors that expand and supplement motion-detection capabilities of the camera unit. For example, the accessory unit PIR sensor provides a PIR field of view, FOV, that is different than the PIR FOV of the camera unit's PIR sensor. Motion detected in either or both of the PIR FOVs is used to cause of change in functionality of the camera system such as, for example, activating image capture by the camera unit and/or activating one or more lights on the modular floodlight system.